Unloading chute for grain tanks



Oct. 23, 1928.

V. T. SLIFER UNLOADING CHUTE FOR GRAIN TANKS Filed Aug. 24, 1927 QMao/ih 2 Sheets-Sheet 1 Inventor Amrng' Oct. 23, 1928. I 1,688,600

v. T. SLIFER' unmmue cmma FOR GRAIN nuns Filed Aug. 24, 1927 2 Sheets-Sheet 2 Patented Get. 23, 1928.

UNETED STATES VIRGIL T. SLIFER, OF NICKEBSON, KANSAS.

UNLOADING CHUTE F83 GRAIN TANKS.

Application filed August 24:, 1927. Serial No. 215,215.

The present invention relates generally to tanks such as are found on combined harvesters, and more particularly to an unloading chute and has for its prime object to provide a chute with means to prevent the waste of grain during the unloading process.

Another more specific object of the invention resides in the provision of an unloading.

chute which is hingedly mounted so that the same may be raised to an elevated posi tion and at the same time will cause the closing of a gate valve across a stationary portion of the chute.

A still further important object of the invention resides in the provision of a chute of this nature which is simple in its construction, inexpensive to manufacture, strong and durable, easy to manipulate, thoroughly efficient and reliable in operation and use, and otherwise well adapted to the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a front elevation of a tank showing my improved chute structure mounted thereon.

Figure 2 is a sectional side elevation thereof,

Figure 3 is a fragmentary top plan view thereof.

Referring to the drawing in detail, it will be seen that the numeral 5 denotes an ordinary or any preferred structure of tank which is usually provided with a bottom 6 slanting toward the front wall of the tank to an opening 7. A stationary chute section 8 extends from the opening 7 inclining outwardly and downwardly and has a slot 9 in the upper portion thereof transversely thereof for slidably receiving a vertically movable valve gate 10. Another chute section 11 is open at the top and is substantially U-shaped in cross section and has one end hinged to the bottom lower edge of the chute section 8 as at 12. This section 11 has its hinged end provided with side extensions as is indicated at 14 for overlapping the sides of the chute section 8.

A rod 16 is rigidly secured to the gate valve 10 and rises from the upper edge thereof. A hanger 17 is secured as at 18V to the tank 5 and extends down from its point of anchorage. A link 19 is pivotally engaged at 20 with the lower end of the hanger 17. A lever 21 is pivot-ally engaged with the link 19 as at 22 and extends across the front of the tank 5 and I'GSb in a. loop-like bracket structure 23 the upper end of which has an offset portion 2 f forming a shoulder on which the lever may be rested in its raised position. The rod 16 is secured to an intermediate portion of the lever 21. A cable 26 is securedto the lever 21 as at 27 and is trained over a pulley 28 at the top of the tank 5 and has branches 29 secured to the sides of the chute section '11. When the lever is in the raised position shown in Figure 1, the chute section 11 is inclined downwardly and outwardly in QXtG11-- sion of the chute section 8 and the gate valve 10 is opened. When the lever 21 is swung to its down position as indicated in dotted lines in Figure 1, the cable will raise the chute section 11 to incline upwardly and outwardly while the gate valve 10 will gravitate to a closed position thus preventing any of the grain from spilling out of the tank after the loading of a vehicle or the like.

It is thought that the construction, operation, utility, and advantages of this invention will now be quite apparent to those skilled in this art without a more detailed descri ation thereof. The present embodiment of t e invention has been disclosed in detail merely by way of example since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description. It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is 1. In combination, a tank, a spout leading from the tank, a hinged chute mounted on the spout, a gate valve slidable through an opening in the spot, a cable attached to the hinged chute, a pulley on the top of the tank over which the cable is trained, a lever pivoted on the tank and having the other end of the cable attached thereto and a rod extending rigidly from the valve and pivotally engaged with the lever.

2. In combination, a tank, a spout leading outwardly and downwardly from the tank and having a slot across the top thereof, a valve slidable through the slot, a hinged chute engaged on the end of the spout, a rod rising rigidly from the valve, a lever, a hanger fixed to the tank, a link pivoted on the hanger, said lever being pivotally en gaged on the link, said rod being pivotallv engaged wit-h an intermediate portion of the lever, a pulley at the upper end of the tank, a cable fixed to an intermediate portion of the lever trained over the pulley and engaged with the chute.

3. In combination, a tank, a spout leading outwardly and downwardly from the tank and having a slot across the top thereof,

a valve slidable through the slot, a hinged chute engaged on the end of the spout, a rod rising, rigidly from the valve, a lever, a hanger fixed to the tank, a link pivoted on the hanger, said lever being pivota-lly engaged on the link, said rod being pivotally engaged with an intermediate portion of the lever,

chute engaged on the end of the spout, a

rod rising rigidly from the valve, a lever, a hanger fixed to the tank, a link pivoted on the hanger, said lever beingpivotally engaged on the link, said rod being pivotally engaged with an intermediate portion of the lever, a pulley at the upper end of the tank, acable fixed to an intermediate portion of the lever trained over the pulley and engaged with the chute, an elongated loop-like bracket disposed on the tank vertically for guiding the lever, the upper end of the loop bracket disposed with an offset portion to provide a shoulder on which the lever may rest.

In testimony whereof I aflix my signature.

VIRGIL T. SLIFER. 

